公开(公告)号：US5703002A

公开(公告)日：1997-12-30

申请号：US703550

申请日：1996-08-27

申请人： Atsuya Towata ,  Mutsuo Sando

发明人： Atsuya Towata ,  Mutsuo Sando

IPC分类号： B01J13/00 ,  B01J23/75 ,  B01J23/755 ,  B01J23/80 ,  B01J35/00 ,  B01J35/02 ,  B01J23/06 ,  B01J21/06

CPC分类号： B01J35/002 ,  B01J35/004

摘要： Photocatalyst particles consist essentially of a matrix consisting of the crystal phase of a semiconducting metal oxide as a photocatalyst and ferromagnetic metal particles dispersed in the matrix, having an average particle diameter of 15 nm at most and a specific surface area of 100 m.sup.2 /g at least, and permitting recovery by a magnetic force. A method for the production of the photocatalyst particles consists essentially of dispersing water in a hydrophobic organic solvent containing a surfactant thereby forming a microemulsion, adding to the microemulsion a raw material for the formation of the crystal phase of a semiconducting metal oxide as a photocatalyst and a raw material for the formation of ferromagnetic metal particles, causing the raw materials contained in the mixture resulting from the preceding step to undergo hydrolysis and inducing precipitation of the hydroxide and oxide thereof in the resultant mixture, separating the precipitates from the resultant mixture, and heat-treating the separated precipitates under a reducing condition.

摘要翻译： 光催化剂颗粒基本上由由作为光催化剂的半导体金属氧化物的结晶相和分散在基体中的铁磁性金属颗粒组成的基质组成，平均粒径最大为15nm，比表面积为100m 2 / g， 最少，并允许磁力恢复。 制备光催化剂颗粒的方法主要包括将水分散在含有表面活性剂的疏水性有机溶剂中，从而形成微乳液，向微乳液中加入用作形成作为光催化剂的半导体金属氧化物的结晶相的原料， 用于形成铁磁金属颗粒的原料，使由前述步骤得到的混合物中所含的原料进行水解并在所得混合物中引起其氢氧化物和氧化物的沉淀，从所得混合物中分离析出物，以及 在还原条件下对分离的沉淀物进行热处理。

公开(公告)号：US06313051B1

公开(公告)日：2001-11-06

申请号：US09501185

申请日：2000-02-10

申请人： Atsuya Towata ,  Mutsuo Sando ,  Koichi Niihara

发明人： Atsuya Towata ,  Mutsuo Sando ,  Koichi Niihara

IPC分类号： C03C1302

CPC分类号： C04B41/009 ,  C04B35/117 ,  C04B35/4885 ,  C04B35/62236 ,  C04B35/6225 ,  C04B41/4584 ,  C04B41/4537 ,  C04B41/5031 ,  C04B41/5042 ,  C04B14/4693

摘要： The present invention provides a method for the manufacture of ceramic composite fibers, and the present invention relates to a method for the manufacture of a composite fiber in which a second phase is dispersed within a matrix fiber, wherein the matrix consists of a substance selected from alumina, zirconia, mullite, YAG, silica, magnesia, nitrides, carbides, metals, alloys, and polymers; the second phase consists of a substance selected from zirconia, mullite, YAG, and other oxides, or from metals; and the composite fiber is produced by synthesizing a fiber from a precursor solution containing the substance of the matrix, and the starting solution which serves as the second phase, dispersed through the matrix solution, and then heating the fiber.

摘要翻译： 本发明提供一种制造陶瓷复合纤维的方法，本发明涉及一种复合纤维的制造方法，其中第二相分散在基质纤维中，其中基质由选自以下的物质组成： 氧化铝，氧化锆，莫来石，YAG，二氧化硅，氧化镁，氮化物，碳化物，金属，合金和聚合物; 第二相由选自氧化锆，莫来石，YAG和其他氧化物或金属的物质组成; 并且复合纤维通过从含有基质物质的前体溶液和通过基质溶液分散的作为第二相的起始溶液合成纤维，然后加热纤维来制造。

公开(公告)号：US06054094A

公开(公告)日：2000-04-25

申请号：US995978

申请日：1997-12-22

申请人： Atsuya Towata ,  Mutsuo Sando ,  Koichi Niihara

发明人： Atsuya Towata ,  Mutsuo Sando ,  Koichi Niihara

IPC分类号： C04B41/85 ,  C04B35/117 ,  C04B35/488 ,  C04B35/622 ,  C04B35/80 ,  C04B41/45 ,  D01F8/18 ,  D01F9/10 ,  D06M11/00 ,  D06M11/46 ,  B28B3/20

CPC分类号： C04B41/009 ,  C04B35/117 ,  C04B35/4885 ,  C04B35/62236 ,  C04B35/6225 ,  C04B41/4584

摘要： A method for the manufacture of a ceramic composite fiber in which a second phase is dispersed within a matrix fiber, wherein the matrix consists of a substance selected from alumina, zirconia, mullite, YAG, silica, magnesia, nitrides, carbides, metals, alloys, and polymers; the second phase consists of a substance selected from zirconia, mullite, YAG, other oxides, and metals; and the composite fiber can be produced by synthesizing a fiber from a precursor solution containing the substance of the matrix, and the second phase starting solution dispersed through the solution, and then heating the fiber.

摘要翻译： 一种用于制造陶瓷复合纤维的方法，其中第二相分散在基质纤维中，其中所述基质由选自氧化铝，氧化锆，莫来石，YAG，二氧化硅，氧化镁，氮化物，碳化物，金属，合金中的物质组成 ，和聚合物; 第二相由选自氧化锆，莫来石，YAG，其他氧化物和金属的物质组成; 复合纤维可以通过从含有基质的物质的前体溶液和分散在该溶液中的第二相起始溶液合成纤维来制造，然后加热纤维。

公开(公告)号：US5145719A

公开(公告)日：1992-09-08

申请号：US673409

申请日：1991-03-22

申请人： Atsuya Towata ,  Mutsuo Sando

发明人： Atsuya Towata ,  Mutsuo Sando

IPC分类号： B01J2/00 ,  B01J19/00 ,  C01F7/02 ,  C01G9/02 ,  C01G19/02 ,  C01G23/053 ,  C04B35/628 ,  C09C1/04 ,  C09C1/40 ,  C09C3/08

CPC分类号： C04B35/6264 ,  B01J2/006 ,  C01G19/02 ,  C01G23/053 ,  C01G9/02 ,  C04B35/62805 ,  C04B35/6281 ,  C04B35/62821 ,  C04B35/62823 ,  C04B35/62886 ,  C04B35/62892 ,  C04B35/632 ,  C09C1/043 ,  C09C1/407 ,  C01P2004/84 ,  C01P2006/12 ,  C04B2235/3217 ,  C04B2235/3284 ,  C04B2235/441 ,  C04B2235/5409 ,  Y10T428/2991

摘要： Minute particles having the surface thereof coated with a dense layer of extremely fine particles of a metal oxide are produced by dispersing the fine particles having water adsorbed in advance on the surface thereof in a hydrophobic organic solvent having an alcohol and optionally an amine dissolved therein and adding to the resultant dispersion a hydrophobic organic solvent having a metal alkoxide dissolved therein, thereby inducing hydrolysis of the metal alkoxide on the surface of the fine particles and consequent deposition of a metal oxide on the surface of the fine particles.

摘要翻译： 其表面被金属氧化物的极细颗粒的致密层涂覆的微粒子通过将预先吸附在其表面上的具有水的细颗粒分散在具有醇和任选的胺溶解的疏水性有机溶剂中而得到， 向所得分散体中加入溶解有金属醇盐的疏水性有机溶剂，由此导致金属醇盐在细颗粒表面上的水解，从而在微粒表面沉积金属氧化物。